WO2007128337A1 - Connecteur électrique - Google Patents

Connecteur électrique Download PDF

Info

Publication number
WO2007128337A1
WO2007128337A1 PCT/EP2006/005326 EP2006005326W WO2007128337A1 WO 2007128337 A1 WO2007128337 A1 WO 2007128337A1 EP 2006005326 W EP2006005326 W EP 2006005326W WO 2007128337 A1 WO2007128337 A1 WO 2007128337A1
Authority
WO
WIPO (PCT)
Prior art keywords
grommet
type joint
grid
electrical connector
connector according
Prior art date
Application number
PCT/EP2006/005326
Other languages
English (en)
Inventor
Christian Campfort
Frédéric CHAZOTTES
Original Assignee
Fci
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fci filed Critical Fci
Priority to PCT/EP2006/005326 priority Critical patent/WO2007128337A1/fr
Publication of WO2007128337A1 publication Critical patent/WO2007128337A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205—Sealing means between cable and housing, e.g. grommet
    • H01R13/5208—Sealing means between cable and housing, e.g. grommet having at least two cable receiving openings

Definitions

  • the present invention relates to electrical connectors comprising:
  • an insulating housing for receiving at least one terminal connected to a wire, said housing comprising :
  • a body wherein at least one terminal accommodating chamber is formed, said body comprising a front face intended to mate with a counterpart connector, and a rear face provided with a chamber entrance for each chamber, and
  • the rear grid is attached to the body and delimits with the rear face a socket intended to receive the grommet-type joint, and
  • the housing delimits a lateral opening for introducing the grommet-type joint into the socket.
  • the grid is attached by means of two opposite walls, delimiting upper and lower openings for introducing the grommet-type joint.
  • the joint comprises two slots, each connecting a plurality of grid holes to corresponding chamber entrances.
  • the joint is introduced by either one of the upper and lower openings.
  • Two pressing elements are then introduced in a respective opening to pinch the joint, in order to close the slots and obtain a sealing effect with inserted wires.
  • the invention provides a connector of the above- mentioned type, characterized in that the relative dimensions of the grommet-type joint and socket are such that, once introduced into the socket, the grommet-type joint is compressed axially between the rear face and the rear grid. According to the invention, a good sealing effect can be obtained without using mobile elements.
  • FIG.1 is an exploded perspective view of an electrical connector according to the invention.
  • FIG.2 is a cross sectional view of a grommet-type joint according to one embodiment of the invention.
  • FIG.3 is a cross sectional view of the electrical connector of FIG. 1.
  • FIGS.4 and 5 are cross sectional views of a grommet-type joint according to other embodiments of the invention.
  • An electrical connector 10 comprising a grommet-type joint 12
  • FIGS.1 and 3 This connector 10 is of a type used in an automotive application, and is intended to mate with a counterpart connector (not shown).
  • the mating direction is referenced as XX' axis, which is oriented from the connector 10 towards the counterpart.
  • orientation or position terms used in the present description refer to this mating axis XX'.
  • the terms "forward” or “front” read as oriented in the mating direction.
  • the multi-way connector 10 shown comprises a grommet 12 and an insulating housing 13 having a body 14, wherein a plurality of terminal accommodating chambers 16 are formed, and a rear grid 18 attached to the body 14.
  • the connector 10 is efficient with only two separate parts, namely the grommet 12 and the housing 13, thus facilitating transporting and assembling the connector.
  • "attached” means either that the grid 18 and the body 14 are firmly joined together, or that the grid 18 and the body 14 are moulded in a single piece. In both situations, the grid 18 stands at a fixed position and orientation relative to the body 14. In the example described, they are moulded in a single piece.
  • the housing 13 further comprises a rear skirt 20 for attaching the rear grid 18 to the insulating body 14.
  • the connector also comprises a plurality of terminals 22 connected at an end of respective wires 24, and intended to be fixedly arranged in respective accommodating chambers 16 of the insulating body 14.
  • the wires are substantially cylindrical in the described examples.
  • the body 14 comprises a front part 26 and a rear part 28, intended to sealingly engage with each other with the help of an interspaced ring joint 29.
  • the front part 26 delimits a front face 30 intended to mate with the complementary connector (not shown).
  • the accommodating chambers 16 are delimited by both the rear part 28 and the front part 26.
  • the rear part 28 delimits a rear face 34 provided with a plurality of chamber entrances 36 (FIG. 3), each leading to one associated accommodating chamber 16.
  • the rear grid 18 is located at a distance d from the rear face 34 of the body 14. It extends parallel to the rear face 34.
  • a plurality of grid holes 38 are provided in the rear grid 18. Each grid hole 38 faces and is axially aligned with one associated chamber entrance 36.
  • the rear grid 18 and the rear face 34 delimit together a socket 39 for receiving the grommet 12, which comprises the space separating the rear grid 18 from the rear face 34.
  • the rear skirt 20 extends rearward from a part of the periphery of the rear face 34. More precisely, the rear skirt 20 is U-shaped and comprises two opposed side walls 40 and a bottom wall 42 (FIG. 3) connecting the two side walls 40. Each bottom 40 and side walls 40, 42 connect the rear grid 18 to the rear face 34 of the body 14.
  • the rear part 28 of the body 14, the rear grid 18 and the rear skirt 20 are of unitary construction, constituted of the same material, preferably of plastic material. They are fabricated as a single entity from one single mould.
  • the two side walls 40 delimit a lateral opening 44 facing the bottom wall 42 for introducing the grommet 12 into the socket 39.
  • the grommet 12 has an axial length cf greater than the distance d between the rear face 34 and the rear grid 18, such that, once introduced into the space between the body 14 and the rear grid 18, the grommet 12 is compressed axially between the rear grid 18 and the rear face 34, while being free of transversal constraint.
  • the grommet 12 comprises a plug member 46 through which a plurality of axial through passage 48 are provided, and two sealing ribs 50, 52. Each sealing rib 50, 52 is "doubled", i.e. formed by two parallel projections.
  • the plug member 46 is generally parallelepiped-shaped so as to fit in the socket 39. The plug member 46 lies on the bottom wall 40, i.e. is supported by the bottom wall 40.
  • a first sealing rib 50 extends frontward from a front face 54 of the plug member 46 and encircles all the openings of the through passages 48 which face the chamber entrances 36.
  • the other sealing rib 52 (FIG.2) is symmetrically disposed, on a rear face 55 of the plug member 46. It extends rearward from this rear face 55 and encircles all the openings of the through passages 48 which face the grid holes 42. With the symmetrical other sealing rib 52, the grommet 12 may be inserted indifferently in both ways, i.e. with either one of the sealing ribs 50, 52 oriented frontward.
  • the axial length d ⁇ of the grommet-type joint 20, including the sealing ribs 50, 52, is greater than the distance d between the insulating body 14 and the rear grid 18.
  • Each rib 50, 52 is flattened out respectively against the rear face 34 of the body 14 or the rear grid 18 in order to seal the grommet 12 to the grid 18, around the through passages 48. This prevents dust, water and the like from entering the insulating body 14 along the grommet 12, without the need of any transversal force applied on the grommet 12.
  • the sealing ribs 50, 52 further provide high friction between the grommet 12 and the body 14 and the rear grid 18 preventing unwanted release of the grommet 12. In an alternative embodiment represented on FIG. 4, there is no rearward rib 50.
  • the axial length cT of the grommet 12, including the frontward rib 50, is still greater than the distance d between the body 14 and the rear grid 18. Sealing is therefore obtained between the grommet 12 and the rear face 34. As before, such a sealing prevents dust, water and the like from entering the insulating body 14.
  • the grommet 12 comprises none of the sealing ribs 50, 52.
  • the axial length cT of the grommet 12 corresponds to the axial length of the plug member 46.
  • each through passage 48 comprises a seal portion 56 having a cross-sectional opening 58 smaller than the associated grid hole 48 in all directions of the cross-sectional plane.
  • the cross-sectional opening 58 is substantially circular in the described examples.
  • the seal portion 56 comprises a central shrinking 59 located substantially in the middle of the through passages 48.
  • the seal portion 56 further comprises two inner ribs 60 extending from and located at each end of the shrinking 59, the inner ribs 60 delimitating the cross-sectional opening 58.
  • the wire 24 passes through associated grid hole 32, through passage 48 and chamber entrance 36.
  • the wire 24 has a width greater than the openings delimited by each inner rib 60.
  • the inner ribs 60 are consequently flattened out by the inserted wire 24, which provides contact pression between the inner ribs 60 and the wire 24 in order to seal the grommet

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)

Abstract

Le connecteur électrique comprend un joint de type œillet (12), un boîtier isolant (13) permettant de recevoir au moins une borne (22) connectée à un fil métallique (24). Le boîtier (13) comprend un corps dans lequel au moins une chambre (16) de réception de borne est formée ; le corps comprend une face avant destinée à s'apparier avec un connecteur formant le pendant et une face arrière (34) dotée d'une entrée de chambre (36) pour chaque chambre (16). Le boîtier (13) comprend en outre une grille arrière (18) située à une distance de la face arrière (34) du corps et dotée d'un trou de grille (38) pour chaque entrée de chambre (36). La grille arrière (18) est attachée au corps et délimite avec la face arrière (34) une douille (39) destinée à recevoir le joint de type œillet (12), et le boîtier (13) délimite une ouverture latérale (44) pour introduire le joint de type œillet (12) dans la douille (39). Les dimensions relatives du joint de type œillet (12) et de la douille (39) sont telles qu'une fois introduit dans la douille (39), le joint de type œillet (12) est comprimé axialement entre la face arrière (34) et la grille arrière (18).
PCT/EP2006/005326 2006-05-10 2006-05-10 Connecteur électrique WO2007128337A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2006/005326 WO2007128337A1 (fr) 2006-05-10 2006-05-10 Connecteur électrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2006/005326 WO2007128337A1 (fr) 2006-05-10 2006-05-10 Connecteur électrique

Publications (1)

Publication Number Publication Date
WO2007128337A1 true WO2007128337A1 (fr) 2007-11-15

Family

ID=37520291

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/005326 WO2007128337A1 (fr) 2006-05-10 2006-05-10 Connecteur électrique

Country Status (1)

Country Link
WO (1) WO2007128337A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0948092A1 (fr) * 1998-03-31 1999-10-06 Yazaki Corporation Connecteur étanche et procédé pour rendre étanche
EP0932918B1 (fr) * 1996-10-16 2002-02-06 The Whitaker Corporation Connecteur electrique etanche

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0932918B1 (fr) * 1996-10-16 2002-02-06 The Whitaker Corporation Connecteur electrique etanche
EP0948092A1 (fr) * 1998-03-31 1999-10-06 Yazaki Corporation Connecteur étanche et procédé pour rendre étanche

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